3
Changes in Habitat Suitability Water temperature, depth, velocity, and timing Intensity and timing of hydrologic and fire regimes Physical, chemical, and biological components of habitat Advantage to invasive species: many are habitat generalists

4
Response of Plants and Animals Climate change will shift Where species are located: range shifts Timing of biological events: phenology Biotic interactions: predation and competition

5
Climate Change and Invasive Species Climate change alters Means of transport and introduction Establishment of additional species Impact of existing invasive species Distribution of existing invasive species Effectiveness of control strategies (modified from Hellmann et al. 2007)

11
Conclusions Prevention, detecting, monitoring, and controlling invasive species is a resource-intensive management endeavor Complicated by uncertainties regarding climate change Understanding and working to minimize these uncertainties will become increasingly important with further environmental stressors Baseline information on species distribution is critical to future management success Modeling efforts to predict future scenarios will become increasingly important to resource managers USGS will continue to work with partners to maintain and improve databases and provide research to help managers make more informed decisions